diff --git a/04/title.txt b/04/title.txt
new file mode 100644
index 0000000..19f92ad
--- /dev/null
+++ b/04/title.txt
@@ -0,0 +1 @@
+Kabu 4
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 8815c93..7857c62 100644
--- a/manifest.json
+++ b/manifest.json
@@ -80,6 +80,8 @@
 		"03-25",
 		"03-27",
 		"03-29",
+		"03-31",
+		"04-title",
 		"10-title",
 		"10-01",
 		"10-04",